Can DIY masks filter out viruses and coronavirus

Do DIY Cloth Masks Protect Us From COVID-19?

DIY cloth masks to protect against viruses sounds like a crazy idea. Data shows masks work incredibly well, and they’re also really cheap. Surgical masks cost a few pennies, and they’re capable of filtering out 80% of particles down to 0.007 microns (14 times smaller than COVID-19). However, the COVID-19 … Read more

Disinfect N95 mask wash alcohol viruses

The Best Way to Clean and Disinfect N95 & KN95 Masks

Covid-19 and the Delta variant has led to a new surge in interest of how to clean and disinfect masks. Google searches for “wash N95 mask” and “wash KN95 mask” have sky-rocketed. Yet data-backed answers seem to be in short supply. The standard guidelines say to throw masks out and … Read more

N95 versus KN95 Mask Difference Standards

What’s the Difference Between N95 and KN95 Masks?

With such similar-sounding names, it can be confusing to understand the difference between N95 and KN95 masks. What are KN95 masks, and are they the same as N95 masks? This handy chart explains the differences between N95 and KN95 masks (and all characteristics that are the same). N95 vs. KN95 … Read more

N95 vs KF94 Mask Ratings

What’s the Difference Between N95 and KF94 Masks?

It turns out, the difference between N95 and KF94 masks is minor for the factors that most users care about. KF94 is the “Korean filter” standard similar to the US N95 mask rating. Difference Between N95 and KF94 Masks: Charted Out They look similar, and they filter a nearly identical … Read more

Do N95 Masks limit us breathing of Oxygen Cover

Do N95 Masks Deprive Us of Oxygen?

Wearing masks for hours on end has led some people to worry about whether N95 masks deprive us of oxygen. Scientists have actually made people wear N95 masks and measured their blood oxygen. So we have a solid answer to this question, and it’s not what this question assumes. This … Read more

N95 vs P2 Masks

What’s the Difference Between N95 and P2 Masks?

The difference between N95 and P2 masks is so small that most users will not notice anything amiss. The P2 rating is the standard in Australia and New Zealand similar to the US N95 mask rating.   Difference Between N95 and P2 Masks: Charted Out N95 and P2 masks look … Read more

How to Source Reliable and Tested N95 KN95 Masks

How to Find Reliable N95 Mask Suppliers

After testing 31 masks from 19 suppliers in China, we discovered that almost half of the masks were not meeting the N95 standards for filtering particles. What’s more, out of the 17 masks that did meet the N95 standard, most of these broke when we tried some simple structural tests. … Read more

N95 Masks Made From Plastic

What Are N95 Masks Made From?

N95 masks made from synthetic plastic fibers are most common. These plastic fibers are similar to the fibers in synthetic and polyester shirts many people wear. N95 Masks Made From Synthetic Plastic For example, let’s take the 3M 9332 masks that I wear in Beijing. Technically this is an N99 (FFP3) … Read more

Sanitizing Masks With Alcohol Degrades Performance

With mask shortages during the coronavirus outbreak, some doctors are sanitizing masks with alcohol so they can re-use them. But this raises questions about whether alcohol actually works and whether it degrades the masks.   Does Alcohol Kill Viruses? The research on alcohol is clear. Alcohol kills viruses. Technically, viruses aren’t … Read more

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